Wheel-rim.



H. J. GRAVES.

WHEEL RIM.

APPLIGATIQN FILED rmms, 1911.

1,913,91 1. Patented Dec. 26, 1911.

3 8HEETSSHEET 1.

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H. J. GRAVES.

WHEEL RIM. APPLICATION FILED FEB. 25,1911.

1,913,011, Patented Dec.26, 1911.

3 SHEETS-SHEET 2.

H. J. GRAVES.

WHEEL RIM. APPLICATION FILED IEB.25, 1911.

1,013,01 1 Patented Dec.26,1911

3 SEEETSSHEET 3.

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HENRY JAMES GRAVES, OF KENSINGTON, LONDON, ENGLAND.

WHEEL-RIM.

Specification of Letters Patent.

Patented Dec. 26. 1911.

Application filed February 25, 1911. Serial No. 610,835.

To all 113710721 it may concern:

Be it known that I, I'TENHY Janus GRAVES, a subject of His Majesty the King of England, residing at 1 Addison road north, Kensington, in'the county of London, Kingdom of England, have invented a certain new and us'etul Improved Wheel-Rim, of which the following is a specification. 7

This invention relates to improvements in wheel rims for pneumatic or other tires for use on road vehicles of the kind in which the rim flange is formed in sections which are hinged to the body of the rim.

The invention is illustrated in the drawings accompanying this specification, in which I Figure 1 is an elevation of a wheel rim showing the hinged flange in position; Fig. 2 is a similar view showing the flange when opened for placing a tire in position-: Fig. asectional elevation with the flange .in a similar position to that shown in the previous figure; Fig. 4 is av sectional view of the component parts constituting the wheel rim, and Fig. 5 is a side elevation of the adjusting nut and its locking means.

The outside beaded flange of the wheel rim 0; isas shown made in two parts or halves Z) 7), that are hinged to the rim a at c e at diametrically opposite points; thus allowing each half of the said outer flange to be swung away from the main body of the rim 0, when putting on or taking off a tire.- Thus there is no flange over which the tire has to be stretched except at the pivoted points 0 c which do not in the least interfere with such operations.

The bodyof the rim a that takes the tire extends throughoutthe circumference of the wheel at one side of the rim and is preferably made in one piece of rolled steel or other metal and is provided with an in wardly directed flange a to correspond with a similar flange Z) 6 on the hinged flange portions 7) b when in their normal positions. The hinged flanges or rim portions 1) 7) are located at the opposite side of the rim from the fixed body or rim portion and ext nd throughout the circumference of the wheel.

To secure the hinged flanges or rim portions in engagement with the fixed portions or body of the wheel rim I provide a plurality of channel shaped sections or members d that are hinged to the main body of the wheel rim at 6 so that they can be adjusted in the plane of the wheel to bring them into or withdraw them from engagement with the flanges a Z). The four channel segments or segmental sections (Z are arranged to engage with nearly the whole inner circumferences of the rim flanges a 7) and their expansion and contraction is determined by a pair of castellated nuts ff that are in screwed engagement with a pair of inwardly directed screwed pins 9 g attached to the rim (4. These adjustment devices of the channel. rims (Z are disposed at diametrically opposite points on the wheel rim and midway between the pivots e of the said channels. A sliding block 71 is mounted in engagement with each oastellated nut and is also connected by means of lugs h h and links z' i with the freeends of the channel segments (Z; thus when the nuts are screwed down as in Fig. 1 the links or toggle members cause the segments 03 to expand and engage with the flanges a 6 while when they are unscrewed they cause the links to closeup into the position shown '11 Fig. 2 and withdraw the segments.

W hen the segments (1 are withdrawn from engagement with the flanges a b the flanges b b can be swung outward or away from the rim a.

Locking devices are provided to secure the eastellateci nuts f intheir adjusted positions and may as shown convenient-1y eom prise a small spring trigger j j pivoted in a slot on each block b it so as to engage when closed up with one of the openings in the castellated nut.

What I claim as myinvention and desire to secure by Letters Patent is :-v

1. A wheel rim comprising a flanged rim portion, a pair of semi-circumferential flanges hinged thereto, an internal flange on the rim portion, a corresponding internal flange on each of the semi-circum- :terential portions, and a plurality of hinged channel segments adapted to swing into and out ot engagement with the internal flanges on the rim and flange portions to hold them in position for the purpose described.

A wheel rim comprising a flanged rim .1

portion, a pair of semicircumferential flanges hinged thereto, an internal flange on the rim portion, a corresponding internal llange on each of the semicircumferential portions, a plurality of hinged channel segments arranged to swing into and out of engagement with the internal flanges of the rim and the flange portions to hold them in screws connected with the rim ort'ion, nuts engaging the screws, sli ing blocks carried by the nuts, and links or toggle members connected to the sliding blocks and .to the channel segments, substantially as described.

3. A wheel rim comprising a fixed rim portion extending throughout the circum- POSltlOIl,

' ierence of the wheel at. one side of the rim,

and a plurality of hinged rim portions extending throughout the circumference of the wheel at the opposite side of the rim, a series of segmental channel sections hinged to the fixed rim portion and arranged 'to swing into and out of engagement with both of the said rim portions to lock and release the hinged rim portions, and means forsecuring the channel sections in their engaging position.- I

In testimony whereof I aflix my signature 20 in the presence of two witnesses.

HENRY JAMES GRAVES.

Witnesses: I Y J. C. ALLTRED, W. LovLEs. 

